CONTACTS

Dalloz Stones & Rough - image Contact

Our Story

Almost a century of experience in Crystallogenesis


The only producer of Sapphires in France, RSA has 90 years experience in Sapphire and Ruby Crystallogenesis.
We have mastered the manufacturing process by using the Verneuil method for more than 80 years. By the end of the 90s, we diversified to other methods of crystallogenesis such as E.F.G. and "Kyropulos”.
We were certified ISO 9000 in 2005 and can produce 100 tons of Sapphires annually for our Worldwide clientele with an interest in Watch, Jewellery and also civil and military Optoelectronic industries. We are based near Grenoble, in a chemical complex made up of companies respecting the strictest national and international environmental standards.

Dalloz Stones & Rough - image pour hr OUR EXPERTISE
Dalloz Stones & Rough - presentation
Dalloz Stones & Rough - image fond
Dalloz Stones & Rough - image GroupDalloz Stones & Rough - image Group